I have a protobuf structure with over 100 fields.

When using the raw protoc tool to generate the .cc and .h files, and using the ParseFromArray function, it takes about 600ms to deserialize a total of 150k elements from a byte array.

However, it takes much longer when I switch to using Qt's built-in protobuf plugin. With QProtobufSerializer, it takes more than 2 seconds to deserialize only 10k elements.

I'm wondering if this behavior is by design or if I'm misusing the code, causing the performance issue.